Defensive publication



DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accord abstracts of Defensive Publication applications are identified b The heading of each abstract indicates the number of pages of in the application as originally filed. The files of these applica may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of no assertion as to the novelty of the disclosed subject matter.

PUBLISHED JANUARY 20, 1970 T870,018 METHOD FOR MANUFACTURING POLYOLEFIN STRAPPING Paul K. Fain, Jr., R0. Box 511, Kingsport, Tenn. 37662 Continuation of application Ser. No. 643,376, June 5 1967. This application Aug. 25, 1969, Ser. No. 853,621 Int. Cl. B29c 17/14, 25/00; B2911 7/24 US. Cl. 264146 No Drawing. 16 Pages Specification An improved method for manufacturing strapping from polyolefins comprising, for example, the steps of (1) extruding a polyolefin into sheet form, (2) subjecting the extruded sheet material to a controlled temperature environment of between about 35 F. and about 200 F., (3) slitting the sheet into a plurality of straps while the sheet temperature is within the temperature range of the controlled temperature environment, (4) thereafter orienting the strapping, while in strap form, by drafting it at an elevated temperature, and (5) heatsetting the oriented strapping by exposing the straps to an intermediate temperature,

ance with the Notice of Dec. 16, 1969, 869 O.G. 687. The y distinctly numbered series and are arranged chronologically. specification. including claims and sheets of drawings contained tions are available to the public for inspection and reproduction alleged invention. The Patent Ofiice makes 

